Table 1 in Revision of Sthenelais Kinberg, 1856, Fimbriosthenelais Pettibone, 1971 and Eusthenelais McIntosh, 1876 (Polychaeta, Sigalionidae) in the Northeast Atlantic

Table 1. Diagnostic generic characters of Sthenelais Kinberg, 1856, Fimbriosthenelais Pettibone, 1971 and Eusthenelais McIntosh, 1876.
Character / GenusSthenelaisFimbriosthenelaisEusthenelaisProstomiumLength of lateral antennaeDistinctly shorter than dorsal tentacular cirriDistinctly shorter than dorsal tentacular cirriAs long as dorsal tentacular cirriSegment 3Pair of dorsal cirriAbsentAbsentPresentNeuropodiaStylodesSmooth (occasionally minutely papillated)Distinctly papillatedSmoothShape of posterior bractBilobedBilobed or truncateBilobedNeurochaetaeCompound falcigersPresent (numerous)Present (numerous)Present (numerous)Compound spinigersAbsent or present (few)AbsentPresent (numerous)Simple spinous chaetaeAbsent or present (few)Absent or present (few)Absent